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HOMESERVICE MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 211 (OBJECT DETECTION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESPARKING ASSIST SYSTEM MALFUNCTIONCIRCUIT/SYSTEM VERIFICATION
2009 Chevrolet Tahoe Base, 4.8 C

Circuit/System Verification

2009 Chevrolet Tahoe Base, 4.8 CSECTION Circuit/System Verification
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 GMC Yukon XL, 2010 GMC Yukon, 2010 Chevrolet Tahoe, 2010 Chevrolet Suburban, and 2010 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, verify the parking assist system is enabled through the DIC.
    • If the parking assist system is manually disabled, enable the system. Refer to the vehicle owners manual for instructions on enabling the system.
  2. Observe the scan tool Park Assist Switch parameter while pressing and releasing the park assist disable switch. The parameter should change between Active and Inactive.
    • If the parameter does not cycle between the specified values, refer to Park Assist Disable Switch Circuit Malfunction.
  3. Observe the scan tool Park Assist Switch LED parameter while pressing and releasing the park assist disable switch. The parameter should change between On and Off.
    • If the parameter does not cycle between the specified values, refer to Park Assist Disable LED Circuit Malfunction.
  4. Transmission in REVERSE, verify one audible beep sounds and the scan tool Park Assist System Status parameter is Enable.
    NOTE: After completing the next step the vehicle might need to be driven in the forward direction at speed greater than 40 km/h (25 mph).
    • If not the specified values, refer to Diagnostic Aids and the scan tool Park Assist Disable History parameters to determine the cause of the inhibit.
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